CN110005576B - Wind power generation wind tower capable of accurately correcting verticality and installation and maintenance method thereof - Google Patents
Wind power generation wind tower capable of accurately correcting verticality and installation and maintenance method thereof Download PDFInfo
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- CN110005576B CN110005576B CN201910226839.XA CN201910226839A CN110005576B CN 110005576 B CN110005576 B CN 110005576B CN 201910226839 A CN201910226839 A CN 201910226839A CN 110005576 B CN110005576 B CN 110005576B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/342—Arrangements for stacking tower sections on top of each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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Abstract
The invention discloses a wind power generation wind tower capable of accurately correcting verticality and an installation and maintenance method thereof, wherein the tower is installed from bottom to top, each section is fastened and spliced by bolts, when the set height is reached, the tower is fixed on a ground anchor by a diagonal cable, a tool is installed at the top of each section of tower, a lifting rope of the tool is positioned outside the tower, a pendant is installed on the lifting rope, and whether the tower is vertical or not is judged by observing whether a gap between the tower and the lifting rope is uniform or not; another tool is installed on the tower at the top, a lifting rope of the tool is positioned in the wind measuring tower, a pendant on the lifting rope is close to the ground, and when the wind measuring tower is completely vertical, the pendant is aligned to the central point of the wind measuring tower; when a maintainer is in inspection, the maintainer mainly checks whether the pendant in the anemometer tower is aligned with the center point of the anemometer tower. The invention can accurately and reliably adjust the verticality of the anemometer tower and is convenient for the installation and maintenance of the anemometer tower.
Description
Technical Field
The invention relates to the technical field of installation and maintenance of wind power generation wind towers, in particular to a wind power generation wind tower capable of accurately correcting verticality and an installation and maintenance method thereof.
Background
As known in the art, wind towers are mainly used in the field of wind power generation: firstly, in the early stage of wind field development, wind resources of the area are evaluated through data measured by a wind measuring tower; secondly, during the operation of the wind field, wind power is predicted through wind tower data; and thirdly, testing a power curve of the wind turbine generator. In any of the above requirements, the height of the wind measuring tower is equal to the hub center of the wind turbine generator.
With the continuous increase of the size of the wind generating set, the matched wind measuring tower is also higher and higher, and the current wind measuring tower height reaches 150m, so that the problems of installation and maintenance are also increasingly prominent. The verticality becomes more and more difficult to adjust along with the increase of the height of the anemometer towers, and many anemometer towers can be S-shaped. Poor perpendicularity can lead to inaccurate anemometer measurements; freezing disasters in southwest areas of China can cause the bearing of the anemometer tower to be larger and gradually inclined, so that the anemometer tower is stressed unevenly and finally collapses; typhoons in coastal areas are frosted on snow for wind towers which are inclined at present. Therefore, the quality of the installation and maintenance of the wind measuring tower is well controlled, the wind measuring tower is ensured to be in a vertical state, the stress is uniform, and the wind measuring tower has key effects on the quality and service life of the wind measuring tower and the safety of personnel.
The installation and maintenance modes of the current anemometer tower mainly adopt an integral naked eye judgment mode, namely after the integral rough installation of the anemometer tower is finished, naked eyes are used for observing whether the whole is vertical or not, if not, the inclined-pull line is adjusted until the anemometer tower is observed to be nearly vertical by naked eyes, but all towers cannot be in a vertical state in many times, a certain section of tower is often adjusted, and the other section of tower is influenced.
The current installation and maintenance modes of the anemometer tower have the following problems:
1. when the installer judges whether the whole anemometer tower is vertical or not by naked eyes, no reference standard exists, the installer is completely dependent on the feeling, and the judgment of different installers is different, so that the verticality is poor.
2. The independent perpendicularity evaluation and independent adjustment of the tower between the two inclined pull lines are not carried out, so that when the inclined pull lines are adjusted, the originally vertical tower is likely to be adjusted to be non-vertical, and finally the wind measuring tower is in an S shape, or the wind measuring tower in the original S shape is adjusted to be in another S shape.
3. Maintenance personnel do not have a set of simple method for judging whether the anemometer tower is inclined or not, so that the inclination of the anemometer tower is larger and larger until the anemometer tower collapses.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a wind power generation wind tower with accurate correction of verticality and an installation and maintenance method thereof, which can accurately and reliably adjust the verticality of the wind tower and facilitate the installation and maintenance of the wind tower.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the wind power generation wind measuring tower capable of accurately correcting verticality is formed by connecting a plurality of sections of towers from bottom to top through bolts, each section of tower is formed by connecting a plurality of sections of tower units from bottom to top through bolts, a tool is arranged at the top of each section of tower, the tool is a first tool, a part of the first tool extends out of the tower, a lifting rope is arranged below the part of the first tool extending out of the tower, the length of the lifting rope is equal to that of each section of tower, a pendant is arranged at the lower end of the lifting rope, each section of tower is fixed to a ground anchor through a plurality of cable-stayed wires, the cable-stayed wires are connected to a plurality of surfaces of the tower and are screwed up through a clamp, an installer can observe whether the tower is parallel to the lifting rope or not through a telescope to judge whether the tower is inclined or not, if not, the length and the clamp of the cable-stayed wires are required to be adjusted until the tower is completely parallel to the lifting rope; the novel wind measuring tower is characterized in that another tool is further installed on the tower frame at the topmost end of the whole wind measuring tower, the novel wind measuring tower is a second tool, the center of the second tool is located at the center of the inside of the wind measuring tower, a hanging rope is placed at the center of the second tool, the length of the hanging rope is the height of the whole wind measuring tower, a hanging weight is installed at the lower end of the hanging rope, if the hanging weight is aligned with the center point of the wind measuring tower, the tower frame is vertical, and maintenance personnel mainly check whether the hanging weight is aligned with the center point of the wind measuring tower or not in later inspection.
Further, each tower unit is of a triangle structure and is formed by welding three upright posts and cross bars, two upright posts are connected through the cross bars, connecting discs are welded at two ends of each upright post, three bolt connecting holes are formed in the connecting discs and uniformly distributed along the circumferential direction of each upright post, the connection between the tower units is realized by aligning the bolt connecting holes, then a bolt is plugged into each bolt connecting hole and a tightening nut is used for fastening, a first tool with a bolt hole is firstly placed on the connecting disc at the top end of each section of tower, the bolt hole of the first tool is consistent with the bolt connecting hole of the connecting disc, a first tool is plugged into the hole, a bolt and a tightening nut are plugged into the first tool, each section of tower is fixed on a ground anchor by three cable-stayed wires, one upright post is provided with one cable-stayed wire, and is tightened by a clamp on the cable-stayed wire, and if the tower is not parallel to the cable, the length and the clamp of the three cable-stayed wires are required to be adjusted until the tower is completely parallel to the cable; the center of the second tool is positioned at the center of a triangle surrounded by three upright posts.
Further, the pendant is a conical pendant.
Further, the first tooling is provided with two bolt holes, and the two bolt holes correspond to two outer bolt connection holes on the connecting disc.
Further, the second tool is of a three-jaw structure, and three jaws of the second tool are respectively connected to a cross rod between two upright posts.
The method for installing and maintaining the wind power generation wind tower capable of accurately correcting verticality comprises the following steps:
firstly, installing a wind measuring tower from bottom to top, fastening and splicing each section of tower units by bolts to form a plurality of sections of towers, fixing the towers to a ground anchor by using a diagonal cable when the set height is reached, installing a first tool at the top of each section of tower, hanging a lifting rope on the first tool, wherein the lifting rope is positioned outside the towers, installing a pendant on the lifting rope, and checking the verticality of the wind measuring tower from different directions by using a telescope observation mode, namely, whether gaps between the towers and the lifting rope are uniform and parallel or not, and adjusting diagonal cables if the gaps are not vertical until the towers are vertical; then, the installation of the upper towers is started by the same method, so that each tower section is ensured to be in a vertical state;
after the whole wind measuring tower is installed, a second tool is installed on the tower at the top, a lifting rope is hung on the second tool, the lifting rope is positioned in the wind measuring tower, a pendant is installed on the lifting rope, the pendant is close to the ground level, and when the wind measuring tower is completely vertical, the pendant is aligned to the center point of the wind measuring tower;
when a maintainer is patrolling, the maintainer mainly checks whether the pendant in the anemometer tower is aligned with the center point of the anemometer tower, if not, the part of the tower or the whole of the anemometer tower is inclined, and at the moment, each section of tower is independently evaluated and adjusted by the pendant alignment method, specifically: and observing whether each section of tower is inclined or not by using a telescope from bottom to top, namely, in which direction the tower is inclined, slightly loosening all inclined stay wires of the inclined tower upwards, and adjusting and fastening the inclined tower upwards step by step until all tower sections are vertical and the pendant in the anemometer tower is aligned with the center point of the anemometer tower.
Furthermore, each tower unit is triangular and is formed by welding three upright posts and connecting cross bars, connecting discs are welded at two ends of each upright post, three bolt connecting holes uniformly distributed along the circumferential direction of each connecting disc are formed in each connecting disc, when the towers are connected, the bolt connecting holes are aligned, bolts are plugged into each bolt connecting hole, nuts are screwed, and the multi-section tower units are connected through the bolts to form a section of tower;
when the tower is installed from bottom to top and reaches a set height, three inclined stay wires are needed to fix the section of tower to a ground anchor, and the section of tower is temporarily screwed on the inclined stay wires by using a clamp, wherein one inclined stay wire is connected with one upright post;
then, a first tool with two bolt holes is firstly placed before a connecting disc at the top end of the tower is plugged with bolts, the bolt holes of the first tool are consistent with the bolt connection holes of the connecting disc, a part of the first tool extends out of the tower, then the bolts are plugged, and nuts are screwed;
a lifting rope is put down at the part of the first tooling, which extends out of the tower, the length of the lifting rope is equal to that of each section of tower, and then a conical pendant is arranged at the lower end of the lifting rope;
the installer uses the telescope to observe whether the tower is parallel with the lifting rope, namely whether the gap between the tower and the lifting rope is even, if not, the lengths and the clamping bands of the three oblique pull lines are required to be adjusted until the tower is completely parallel with the lifting rope, and the following is noted: the observer needs to observe in three different directions of the anemometer tower, so that the tower is completely parallel to the lifting rope when seen in each direction, at the moment, the tower is in a vertical state, and then the clamp is screwed;
then, continuously installing a tower frame upwards, and installing a lifting rope, observing parallelism and adjusting a diagonal line in the same way;
finally, a second tool is installed on the tower at the top end, the center of the second tool is positioned at the center of a triangle formed by the three upright posts, a lifting rope is placed at the center of the second tool, the length of the lifting rope is the height of the whole wind measuring tower, and a conical pendant is installed at the lower end of the lifting rope, at the moment, because each section of tower is vertical, the pendant is aligned to the center point of the wind measuring tower;
when a maintainer patrols and looks at in the later stage, the maintainer mainly checks whether the hanging drop is aligned with the center point of the wind measuring tower, if not, the part of the tower or the whole of the wind measuring tower is inclined, the same method is used for observing whether each section of tower is parallel to the hanging rope or not by using the telescope, if not, the hanging drop is inclined, and judging which direction is inclined, then all inclined pull lines of the inclined tower are slightly loosened, and the hanging drop is gradually corrected to be in a vertical state by adopting a mode of adjusting from bottom to top, and then the clamp is screwed, so that the hanging drop is aligned with the center point of the wind measuring tower again.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the wind measuring tower with the height of more than 100 meters is divided into a plurality of sections to independently evaluate the verticality, so that the verticality can be determined, and errors caused by doing work by feeling can be avoided.
2. Maintenance personnel can accurately judge whether the whole anemometer tower is inclined or not through a very simple method, and the method is scientific, reliable and high in accuracy.
3. The verticality correction can be independently carried out on each section of tower, and the error adjustment are avoided.
4. The invention has low cost, and the main increase is the cheap lifting rope.
Drawings
FIG. 1 is a schematic view of the overall installation of a wind power generation tower of the present invention.
FIG. 2 is a schematic structural view of each tower unit.
FIG. 3 is a top view of a wind power generation anemometer tower of the present invention.
Detailed Description
The invention will be further illustrated with reference to specific examples.
Referring to fig. 1 to 3, the wind power generation wind tower with accurate correction of verticality provided by the embodiment is formed by connecting multiple sections of towers 8 from bottom to top through bolts, each section of tower 8 is formed by connecting multiple sections of tower units 7 from bottom to top through bolts, each section of tower unit 7 is of a triangle structure and is formed by welding three upright posts 1 and a cross rod 4, every two upright posts 1 are connected through the cross rod 4, connecting discs 2 are welded at two ends of each upright post 1, three bolt connecting holes 3 uniformly distributed along the circumferential direction of each connecting disc 2 are formed in each connecting disc 2, connection among the tower units 7 is aligned with the bolt connecting holes 3, then bolts 5 and tightening nuts 6 are plugged into each bolt connecting hole 3 for fastening, a tool with two bolt holes is placed in advance of the connecting disc 2 at the top end of each section of tower 8 before the bolts 5 are plugged into the connecting disc 2, and the tool is a first tool 12, the bolt hole of the first tooling 12 is consistent with the bolt connection hole 3 of the connecting disc 2 and corresponds to the two bolt connection holes 3 outside the connecting disc 2, after the first tooling 12 is installed on the opposite holes, bolts 5 and tightening nuts 6 are plugged in, a part of the first tooling 12 extends out of the tower, a lifting rope 13 is arranged at the part of the first tooling 12 extending out of the tower, the length of the lifting rope 13 is equal to the length of each section of tower 8, a conical pendant 14 is installed at the lower end of the lifting rope 13, each section of tower 8 is fixed on a ground anchor 11 by three oblique pull wires 9, one upright post 1 is provided with one oblique pull wire 9 and is tightened on the oblique pull wire 9 by a clamp 10, an installer can observe whether the tower 8 is parallel to the lifting rope 13 by using a telescope to judge whether the tower 8 is inclined or not, if not parallel, the lengths of the three oblique pull wires 9 and the clamp 10 are required to be adjusted, until the tower 8 is perfectly parallel to the lifting rope 13; the tower at the top of the whole wind measuring tower is also provided with another tool, the second tool 15 is of a three-claw structure, three claws of the second tool 15 are respectively connected to the cross rod 4 between two upright posts 1, the center of the second tool 15 is positioned at the center of a triangle formed by the three upright posts 1, a lifting rope 16 is placed at the center of the second tool 15, the length of the lifting rope 16 is the height of the whole wind measuring tower, the lower end of the lifting rope 16 is provided with a conical pendant 17, if the conical pendant 17 is aligned with the center point of the wind measuring tower, the tower is vertical, and maintenance personnel mainly check whether the conical pendant 17 is aligned with the center point 18 of the wind measuring tower in later inspection.
The following is the installation and maintenance method of the wind power generation wind tower according to the embodiment, which specifically includes the following steps:
three upright posts 1 with a certain length are welded with a cross rod 4 to form a triangular tower unit 7, connecting discs 2 are welded at two ends of each upright post 1 of each tower unit 7, three bolt connecting holes 3 uniformly distributed along the circumferential direction of each connecting disc 2 are formed in each connecting disc 2, when the tower units 7 are connected, the bolt connecting holes 3 are aligned, bolts 5 and tightening nuts 6 are plugged into each bolt connecting hole 3, and a plurality of sections of towers 7 are connected through the bolts 5 to form a section of tower 8.
When the tower is installed from bottom to top and reaches a certain height, the tower 8 is fixed on the ground anchor 11 by three cable-stayed wires 9, and the cable-stayed wires 9 are temporarily screwed by a clamp 10.
Next, a first tool 12 with two bolt holes is placed before the top connecting disc 2 of the tower 8 is plugged with the bolts 5, the bolt holes of the first tool 12 are consistent with the bolt connecting holes of the connecting disc 2, and corresponding to the two bolt connecting holes of the connecting disc 2, a part of the first tool 12 extends out of the tower 8, then the bolts 5 are plugged, and the nuts 6 are screwed.
A lifting rope 13 is placed down on the part of the first tooling 12, which extends out of the tower 8, the length of the lifting rope 13 is approximately equal to the length of each section of tower 8, and then a conical pendant 14 is arranged at the lower end of the lifting rope 13.
An installer stands at a position about 100 meters away from the anemometer tower, uses a telescope to observe whether the tower 8 is parallel to the lifting rope 13, namely whether the gap between the tower 8 and the lifting rope 13 is uniform, if not, informs the installer to adjust the lengths of the three inclined pull wires 9 and the clamp 10 until the tower 8 is completely parallel to the lifting rope 13, and notices that: the observer needs to observe in three different directions of the anemometer tower, and ensure that the tower 8 is completely parallel to the lifting rope 13 when seen in each direction, at this time, the tower 8 is represented to be in a vertical state, and then the clamp 10 is screwed.
And then the tower 8 is continuously installed upwards, and the hanging rope installation, parallelism observation and inclined-cable adjustment methods are the same.
Finally, a second fixture 15 is installed on the top tower 7, the center of the second fixture 15 is located at the center of the triangle, a lifting rope 16 is placed at the center of the second fixture 15, the length of the lifting rope 16 is about the height of the whole wind measuring tower, and a conical pendant 17 is installed at the lower end of the lifting rope 16, at this time, because each section of tower 8 is vertical, the pendant 17 is aligned with the center point 18 of the wind measuring tower.
When a maintainer patrols at a later stage, the maintainer mainly checks whether the pendant 17 is aligned with the center point 18 of the anemometer tower, and if not, the maintainer can indicate that part or the whole of the anemometer tower is inclined. In the same way as above, a telescope is used to observe whether each section of tower 8 is parallel to the lifting rope 13, if the section of tower 8 is found to be non-parallel, the section of tower 8 is inclined, and the direction of inclination is judged, then, all inclined pull wires 9 of the inclined tower 8 are loosened slightly, each section of tower 8 is corrected to be in a vertical state step by step in a bottom-to-top adjustment mode, and then the clamp 10 is screwed down, wherein the hanging weight 17 is aligned with the center point 18 of the anemometer tower again.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so variations in shape and principles of the present invention should be covered.
Claims (5)
1. The wind power generation wind measuring tower capable of accurately correcting verticality is formed by connecting a plurality of sections of towers from bottom to top through bolts, and is characterized in that: each section of tower is formed by connecting a plurality of sections of tower units from bottom to top through bolts, a tool is arranged at the top of each section of tower and is a first tool, a part of the first tool extends out of the tower, a lifting rope is arranged below the part of the first tool extending out of the tower, the length of the lifting rope is equal to that of each section of tower, a suspending drop is arranged at the lower end of the lifting rope, each section of tower is fixed to a ground anchor through a plurality of cable-stayed wires, the cable-stayed wires are connected to a plurality of surfaces of the tower and are screwed up through a clamp, an installer can observe whether the tower is parallel to the lifting rope through a telescope to judge whether the tower is inclined or not, if not, the length and the clamp of the cable-stayed wires are required to be adjusted until the tower is completely parallel to the lifting rope; another tool is further installed on the tower frame at the topmost end of the whole wind measuring tower, the second tool is a second tool, the center of the second tool is located at the center of the inside of the wind measuring tower, a hanging rope is placed at the center of the second tool, the length of the hanging rope is the height of the whole wind measuring tower, a hanging weight is installed at the lower end of the hanging rope, if the hanging weight is aligned with the center point of the wind measuring tower, the tower frame is vertical, and maintenance personnel mainly check whether the hanging weight is aligned with the center point of the wind measuring tower or not in later inspection;
each tower unit is of a triangle structure and is formed by welding three upright posts and cross bars, two upright posts are connected through the cross bars, connecting discs are welded at two ends of each upright post, three bolt connecting holes uniformly distributed along the circumferential direction of each upright post are formed in the connecting discs, the connection between the tower units is realized by aligning the bolt connecting holes, then a bolt is plugged into each bolt connecting hole and a tightening nut is used for fastening, a first tool with a bolt hole is firstly placed on the connecting disc at the top end of each tower, the bolt hole of the first tool is consistent with the bolt connecting hole of the connecting disc, a first tool is plugged into the bolt hole and a tightening nut are plugged into the hole, each tower is fixed onto a ground anchor by three cable-stayed wires, one upright post is provided with one cable-stayed wire and is tightened by a clamp, and if the tower is not parallel to the lifting rope, the length and the clamp of the three cable-stayed wires are required to be adjusted until the tower is completely parallel to the lifting rope; the center of the second tool is positioned at the center of a triangle surrounded by three upright posts;
the second tool is of a three-jaw structure, and three jaws of the second tool are respectively connected to a cross rod between two upright posts.
2. The wind power generation wind tower with accurate correction of verticality according to claim 1, wherein: the pendant is a conical pendant.
3. The wind power generation wind tower with accurate correction of verticality according to claim 1, wherein: the first tooling is provided with two bolt holes, and the two bolt holes correspond to two bolt connection holes outside the connecting disc.
4. A method of installing and maintaining a wind power generation tower with accurately corrected verticality as claimed in any one of claims 1 to 3, characterized in that: firstly, installing a wind measuring tower from bottom to top, fastening and splicing each section of tower units by bolts to form a plurality of sections of towers, fixing the towers to a ground anchor by using a diagonal cable when the set height is reached, installing a first tool at the top of each section of tower, hanging a lifting rope on the first tool, wherein the lifting rope is positioned outside the towers, installing a pendant on the lifting rope, and checking the verticality of the wind measuring tower from different directions by using a telescope observation mode, namely, whether gaps between the towers and the lifting rope are uniform and parallel or not, and adjusting diagonal cables if the gaps are not vertical until the towers are vertical; then, the installation of the upper towers is started by the same method, so that each tower section is ensured to be in a vertical state;
after the whole wind measuring tower is installed, a second tool is installed on the tower at the top, a lifting rope is hung on the second tool, the lifting rope is positioned in the wind measuring tower, a pendant is installed on the lifting rope, the pendant is close to the ground level, and when the wind measuring tower is completely vertical, the pendant is aligned to the center point of the wind measuring tower;
when a maintainer is patrolling, the maintainer mainly checks whether the pendant in the anemometer tower is aligned with the center point of the anemometer tower, if not, the part of the tower or the whole of the anemometer tower is inclined, and at the moment, each section of tower is independently evaluated and adjusted by the pendant alignment method, specifically: and observing whether each section of tower is inclined or not by using a telescope from bottom to top, namely, in which direction the tower is inclined, slightly loosening all inclined stay wires of the inclined tower upwards, and adjusting and fastening the inclined tower upwards step by step until all tower sections are vertical and the pendant in the anemometer tower is aligned with the center point of the anemometer tower.
5. The method for installing and maintaining a wind power generation tower capable of accurately correcting verticality according to claim 4, wherein the method comprises the following steps: each tower unit is triangular and is formed by welding three upright posts and a connecting cross rod, connecting discs are welded at two ends of each upright post, three bolt connecting holes are uniformly distributed on the connecting discs along the circumferential direction of each upright post, when the towers are connected, the bolt connecting holes are aligned, bolts are plugged into each bolt connecting hole, nuts are screwed, and the multi-section tower units are connected through the bolts to form a section of tower;
when the tower is installed from bottom to top and reaches a set height, three inclined stay wires are needed to fix the section of tower to a ground anchor, and the section of tower is temporarily screwed on the inclined stay wires by using a clamp, wherein one inclined stay wire is connected with one upright post;
then, a first tool with two bolt holes is firstly placed before a connecting disc at the top end of the tower is plugged with bolts, the bolt holes of the first tool are consistent with the bolt connection holes of the connecting disc, a part of the first tool extends out of the tower, then the bolts are plugged, and nuts are screwed;
a lifting rope is put down at the part of the first tooling, which extends out of the tower, the length of the lifting rope is equal to that of each section of tower, and then a conical pendant is arranged at the lower end of the lifting rope;
the installer uses the telescope to observe whether the tower is parallel with the lifting rope, namely whether the gap between the tower and the lifting rope is even, if not, the lengths and the clamping bands of the three oblique pull lines are required to be adjusted until the tower is completely parallel with the lifting rope, and the following is noted: the observer needs to observe in three different directions of the anemometer tower, so that the tower is completely parallel to the lifting rope when seen in each direction, at the moment, the tower is in a vertical state, and then the clamp is screwed;
then, continuously installing a tower frame upwards, and installing a lifting rope, observing parallelism and adjusting a diagonal line in the same way;
finally, a second tool is installed on the tower at the top end, the center of the second tool is positioned at the center of a triangle formed by the three upright posts, a lifting rope is placed at the center of the second tool, the length of the lifting rope is the height of the whole wind measuring tower, and a conical pendant is installed at the lower end of the lifting rope, at the moment, because each section of tower is vertical, the pendant is aligned to the center point of the wind measuring tower;
when a maintainer patrols and looks at in the later stage, the maintainer mainly checks whether the hanging drop is aligned with the center point of the wind measuring tower, if not, the part of the tower or the whole of the wind measuring tower is inclined, the same method is used for observing whether each section of tower is parallel to the hanging rope or not by using the telescope, if not, the hanging drop is inclined, and judging which direction is inclined, then all inclined pull lines of the inclined tower are slightly loosened, and the hanging drop is gradually corrected to be in a vertical state by adopting a mode of adjusting from bottom to top, and then the clamp is screwed, so that the hanging drop is aligned with the center point of the wind measuring tower again.
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| CN111745317A (en) * | 2020-07-04 | 2020-10-09 | 北京首钢建设集团有限公司 | Method for aligning verticality of tank body by using cross bridge |
| CN112502515A (en) * | 2020-10-09 | 2021-03-16 | 贵州黔冠鼎盛实业有限公司 | Intelligent electric pole with automatic gradient monitoring function |
| KR102576720B1 (en) * | 2020-12-30 | 2023-09-08 | 서울대학교 산학협력단 | Transmission tower with optimum structure |
| CN112738651B (en) * | 2021-01-04 | 2022-06-10 | 重庆电子工程职业学院 | Communication base station |
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